Volatile organic compounds (VOCs) are a group of organic compounds which have a low vapour pressure at room temperature, meaning that they will readily evaporate into the surrounding air. The term VOC refers to many different classes of organic compounds such as alkanes, alkenes, alcohols, aldehydes, aromatics and many more.

Many large combustion plants are now required to monitor mass emissions of major pollutants and to do so requires an accurate measurement of stack gas velocity. The VCEM 5100 is certified to EN 15267 part 3 QAL 1 for all industrial processes including waste incineration. It has several key advantages, firstly the sensors optics are not in contact with the hot and dusty environment, the VCEM 5100 can monitor gases at temperatures exceeding 10000C and the analyser requires minimal maintenance. The VCEM 5100 can...

Process control and emissions monitoring in a glass manufacturing plant is a challenge due to high temperature in the flue gas. The OPSIS DOAS system provides the glass industry with an accurate analyser that will operate with a minimum of maintenance. The OPSIS DOAS system is based on a non-contact method that uses an optical path to measure across the duct. A single OPSIS system will measure all relevant gas componensts such as NOX, SO2, CO, CO2, H2O, O2, and others.

A variety of MS techniques – such as Quadrupole MS, Time-of-Flight (TOF) MS, Ion Mobility Spectroscopy (IMS), etc. have been developed in the past decades, providing new tools for materials analyses. Flow control for mass spectrometry (MS) requires high repeatability and small temperature- and pressure dependency. This is important to achieve a high resolution and instrument resolution. Depending on the size and electrical interface requirements, the Axetris MFC modules or MFC standalone types are the...

The inherent flexibility of Procal analysers enables the instruments to be configured to meet Customer’s specific requirements. Their capability to monitor gas concentrations at elevated pressures and temperatures make Procal products ideal for process applications in the Chemical Industry.

A key issue in the measurement of the products of combustion in Cement and Lime industries is the high levels of particulates. The Procal 2000 in situ analyser`s heated probe option is especially suited to this industry as it efficiently deals with variations in process temperature, keeping the probe above the sample dew point and safe from corrosive condensate.

Hiden's modular CATLAB offers a wide range of experimental tools for catalyst researchers, from rapid dynamic screening to fully automated precise investigations of active surface chemistry & optimisation of catalytic activity. The CATLAB performs analysis using temperature programmed methods such as TPR/TPO/TPD. Pulse chemisorption is also available with the CATLAB-PCS. The integrated QGA mass spectrometer system provides for quantification of the adsorbed/desorbed species. Physical analyses such as metal...

The continuing establishment of nuclear power stations around the world pose unique environmental challenges for their operators. Ecotech provides air samplers to nuclear power plants for sampling of radionuclides.
A nuclear power plant`s radionuclide monitoring network enables continuous sampling of airborne particles onto sample filters contained within High Volume Air Samplers. These filters are then analysed in a laboratory in order to screen for any radiation releases. The challenge has always been to...

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